Is there a pin-compatible replacement for mSMD075-33V?

Yes, several parts like mSMD110-33V and JK-mSMD110-33 are available in the same 1812 package. While they are pin-compatible, their electrical characteristics, specifically the hold current, differ from the original and require review.

What risks should I check before replacing mSMD075-33V?

The main risk is the change in overcurrent protection. All suitable alternatives have a higher hold current (e.g., 1.1A vs 0.75A), which means they will allow more current before tripping. You must confirm this new protection level is safe for your circuit.

mSMD075-33V Alternatives, Datasheet & Cross Reference | TECHFUSE

Find and compare replacements for the TECHFUSE mSMD075-33V, a 33V 0.75A PTC resettable fuse in an 1812 package. This guide analyzes functional alternatives and highlights key parametric differences to ensure a safe substitution.

AI replacement insight

Electrical riskmedium

Higher hold current on all candidates changes the circuit's protection point.

Package risklow

All viable candidates match the 1812 package, ensuring form and fit compatibility.

Can it be replaced directly?

No direct, drop-in replacement with identical key parameters was found. All suitable alternatives have a higher hold current, which requires engineering review.

Best replacement path

Use a functional alternative like TECHFUSE mSMD110-33V or BHFUSE BSMD1812-110-33V, but only after verifying the higher hold current (1.1A vs 0.75A) is safe for the application.

Main risk

The primary risk is electrical; using a part with a higher hold current may fail to protect the circuit from overcurrent conditions the original part was designed for.

Recommended alternatives

Form-fit compatible with a higher hold current; engineering review of protection level is required.

View details

Alternative comparison matrix

Feature / factor	mSMD075-33V	mSMD110-33V	BSMD1812-110-33V	JK-mSMD110-33	Compatibility / risk
Package	1812	1812	-	-	1812 — Same package and pin count.
Voltage	33.0V	33.0V	-	-	33.0V — Maximum voltage rating matches.
Current	0.75A	1.1A	-	-	1.1A — Higher hold current may reduce protection.
Power	0.8W	0.8W	-	-	1.0W — Higher power dissipation may affect thermal performance.

Application & sourcing insights

Questions & answers

The best alternatives are functional matches like TECHFUSE mSMD110-33V or BHFUSE BSMD1812-110-33V. They share the same 1812 package and 33V rating, but have a higher hold current of 1.1A, which must be verified for your application.